Elbow extension sleeve



FIG. 1 is a front elevational view of an elbow extension sleeve showing my new design, the rear elevation being substantially a mirror image thereof;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a bottom plan view of FIG. 1;

FIG. 4 is an enlarged longitudinal sectional view taken along the line 4--4 of FIG. 2, said view being broken away for ease of illustration;

FIG. 5 is an enlarged right end elevational view of FIG. 1 with portions thereof omitted for clarity, the left end being a mirror image thereof;

FIG. 6 is an enlarged sectional view as taken on line 6--6 of FIG. 2;

FIG. 7 is an enlarged sectional view as taken on line 7--7 of FIG. 2; and,

FIG. 8 is an enlarged sectional view as taken on line 8--8 of FIG. 2. 

The ornamental design for an elbow extension sleeve, as shown and described. 